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CN102145704B - Protective mechanism for collision collapse of steering column - Google Patents

Protective mechanism for collision collapse of steering column Download PDF

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Publication number
CN102145704B
CN102145704B CN2011100621130A CN201110062113A CN102145704B CN 102145704 B CN102145704 B CN 102145704B CN 2011100621130 A CN2011100621130 A CN 2011100621130A CN 201110062113 A CN201110062113 A CN 201110062113A CN 102145704 B CN102145704 B CN 102145704B
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China
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tube column
outer tube
steering gear
column body
tubular column
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CN2011100621130A
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CN102145704A (en
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杨洪斌
张程
陈洪财
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SICHUAN MIANYANG SANLI CO Ltd
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SICHUAN MIANYANG SANLI CO Ltd
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Abstract

The invention discloses a protective mechanism for the collision collapse of a steering column, which comprises an inner tubular column body and an outer tubular column body, wherein one end of the outer tubular column body is sleeved on the inner tubular column body; the protective mechanism also comprises a fixed seat, an adjusting bracket and a fixing piece, wherein the fixed seat is arranged on the outer tubular column body, a sliding groove is arranged on the fixed seat, the adjusting bracket is fixed on a mounting bracket of the steering column through a connecting piece, an open groove provided with an opening at the side away from the inner tubular column body is arranged at the joint of the adjusting bracket and the connecting piece, a matching groove is arranged at a position of the adjusting bracket opposite to the sliding groove, and the fixing piece penetrates through the sliding groove and the matching groove so as to lock the adjusting bracket and the fixed seat. When an end of a steering wheel is subjected to an axial force, the fixing piece escapes from the open groove of the adjusting bracket, and the outer tubular column body collapses towards the inner tubular column body; and when the position of the steering wheel needs to adjust, the fixing piece can be released, and the outer tubular column body can axially move along the inner tubular column body so as to adjust the axial position of the steering wheel; moreover, the functions of the axial adjustment and the collision collapse can be fulfilled simultaneously, and the protective mechanism has the advantages of stability, reliability and easiness for industrialized production.

Description

Steering gear collision crumple protection mechanism
Technical field
The present invention relates to the steering column for vehicles technical field, particularly a kind of Steering gear collision crumple protection mechanism.
Background technology
As everyone knows, after the collision happens, kinematic velocity moment changes a lot; And the passenger is because inertia can continue preshoot; Bump i.e. secondary collision, and the secondary collision injured major cause of occupant often with hard thing such as bearing circle, the instrument carrier panel etc. in the place ahead in the car.
Since safety air bag appearred in nineteen fifties, people had obtained considerable progress in master, the passive security field of automobile.With regard to the passive security field, safety air bag develops into present twin-stage even multistage by the single-stage in past, and gas generator is also developed into hybrid etc. by initial pyrotechnic, and ECU also develops to intelligent direction through multi-dimensional development gradually; The safety strap belt with pre-load device that also become basically universal.We can say that the safety measure of vehicle is very perfect now.
But for the vehicle of some type, emphasis is a minivan; Because the restriction of interior space, the distance of chaufeur range direction dish is very limited, and vehicle does not have the long vehicle head as the crusherbull zone district; In case bump, the time of chaufeur and bearing circle generation secondary collision will be very short, and owing to invading (Steering gear Chao Chenei motion vertically) in Steering gear and the bearing circle; Cause from colliding deficiency of time that secondary collision takes place so that safety air bag is thoroughly opened; And safety air bag momentum upon deployment is very large, as in this process, coming in contact, will cause very big injury to chaufeur.
Crumple formula Steering gear is place in operation very early, and it increases one or more connecting pins in the middle of Steering gear, and Steering gear is made up of first Steering gear and second Steering gear two parts, and the two is by the connecting pin captive joint.This connecting pin is generally processed by plastic or other material, has certain shearing strength value, can after collision happens, be cut off, and makes that Steering gear can be in axial shortening, thus the impact that alleviates the suffered bearing circle of chaufeur.But mostly existing Steering gear is absolute construction, and the Steering gear that promptly has collision crumple function does not have the axial adjustment effect.
Need a kind of Steering gear collision crumple protection mechanism that has axial adjustment effect and collision crumple function concurrently at present badly.
Summary of the invention
In view of this, the invention provides a kind of Steering gear collision crumple protection mechanism, to have axial adjustment effect and collision crumple defencive function simultaneously.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
A kind of Steering gear collision crumple protection mechanism, a tube column and an end are set in the outer tube column on the said interior tube column in comprising, also comprise:
Be arranged on the permanent seat on the said outer tube column, which is provided with chute;
Be fixed on the adjusting support on the mounting bracket of Steering gear through attaching parts, the junction of itself and said attaching parts is provided with to the open slot away from a side opening of tube column in said, and the position that this adjusting support is relative with said chute is provided with mating groove;
Pass said chute and mating groove, to lock the connecting element of said adjusting support and permanent seat.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, said chute is a bar-shaped trough, and the axially parallel of its length direction and said outer tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, an end and the said outer tube column free-running fit of said interior tube column, the other end radially is provided with some convex tendons along it, the endoporus interference fit of the circumscribing circle of some convex tendons and said outer tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, said convex tendon is 3-5, and the circumferencial direction rectangular distribution of the said interior tube column in edge.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, also comprise the slippage maintainance set that is arranged between said interior tube column and the said outer tube column, this slippage maintainance set and said interior tube column interference fit are with said outer tube column free-running fit.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, said convex tendon and the said interior tube column structure that is formed in one.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, said connecting element is a bolt.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, said permanent seat is welded on the said outer tube column.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, said attaching parts specifically comprises screw and the nut that is threaded.
Preferably, in above-mentioned Steering gear collision crumple protection mechanism, also comprise being set on the said screw, and be arranged on said mounting bracket and regulate the pad between the support.
Can find out that from above-mentioned technical scheme the present invention fixes a permanent seat on the tube column outside, and on this permanent seat, chute is set; The adjusting support is set on the mounting bracket of Steering gear, and is provided with in the junction of itself and attaching parts, regulate that at this mating groove relative with chute also being set on support to open slot away from a side opening of interior tube column.Regulate support and decide to lock adjusting support and permanent seat through connecting element after moment connects, so that itself and outer tube column form integral body through attaching parts and mounting bracket.
In practice operation, when the bearing circle end received axial force, the inside tube column direction of outer tube column pressurized moved.Because outer tube column connects into an integral body through attaching parts and connecting element and adjusting support and fixed mounting bracket respectively; So outer tube column has the trend that the inside tube column direction of support moves of regulating that drives; When tube column moves to the accommodation limit position outside,,, outer tube column regulates the coupling mechanism force that support overcomes attaching parts so driving because mounting bracket is fixed; Make attaching parts from the open slot of regulating support, deviate from the crumple of the inside tube column direction of outer tube column.
When needs are regulated the position of bearing circle, only need the outer tube column of adjustment to get final product with respect to the position of interior tube column, the present invention can be through unclamping connecting element; Make outer tube column break away from the restriction of mounting bracket; Can when being adjusted to correct position, pass chute and mating groove along the moving axially of interior tube column through connecting element; Support and permanent seat are regulated in locking, to limit moving axially of outer tube column through regulating support and mounting bracket.
Steering gear collision crumple protection mechanism provided by the invention is simple in structure, and tooling cost is low, satisfies axial adjustment and collision crumple function simultaneously, and reliable and stable, is easy to suitability for industrialized production.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The Steering gear that Fig. 1 provides for the embodiment of the invention collides the sectional structure scheme drawing of crumple protection mechanism;
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
The specific embodiment
The invention discloses a kind of Steering gear collision crumple protection mechanism, to have axial adjustment effect and collision crumple defencive function simultaneously.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
See also Fig. 1 and Fig. 2, the Steering gear that Fig. 1 provides for the embodiment of the invention collides the sectional structure scheme drawing of crumple protection mechanism, and Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Steering gear collision crumple protection mechanism provided by the invention, tube column 1, outer tube column 3, permanent seat 10, adjusting support 8 and connecting element 9 in comprising.Wherein, an end of outer tube column 3 is set on the interior tube column 1, an end mutual sheathing of promptly outer tube column 3 and interior tube column 1.Permanent seat 10 is arranged on the outer tube column 3, which is provided with chute 101, and the purpose that permanent seat 10 is set is to be convenient to and regulates being connected of support 8.
Regulate support 8 and be fixed on through attaching parts on the mounting bracket 6 of Steering gear, mounting bracket 6 is the rack section of Steering gear, and it is fixed.The junction of regulating support 8 and attaching parts is provided with to the open slot away from a side opening of tube column said in 1, and this adjusting support 8 and said chute 101 relative positions are provided with mating groove.Through open slot is set, when adjusting support 8 receives the power of inside tube column 1 direction,, will overcome the coupling mechanism force of attaching parts if this power acquires a certain degree, make attaching parts break away from open slot, regulate support and continue mobile.Therefore; The locking torque of above-mentioned attaching parts also is the amount of a need control; According to the suffered axial normal force of bearing circle; Set the required axial force of locating on the adjusting of the attaching parts disengaging here support 8 of open slot, the condition that needs to satisfy be that the required axial force of open slot that attaching parts breaks away from the adjusting support 8 should be greater than the suffered axial normal force of bearing circle.Thereby when bearing circle receives improper external force, regulate support 8 and can break away from mounting bracket 6, the crumple function takes place.
Connecting element 9 passes said chute 101 and mating groove, locks said adjusting support 8 and permanent seat 10.Connecting element 9 can be bolt, and after connecting element 9 will be regulated support 8 and permanent seat 10 lockings, adjusting support 8, outer tube column 3 just became as a whole with mounting bracket 6.Have only outside that tube column 3 receives larger axis when power, regulate support 8 and just can break away from mounting bracket 6, follow outer tube column 3 inside tube column 1 directions and move.
Attaching parts can specifically comprise the screw that is threaded 7 and nut 5, and nut and nut 5 through screw 7 compress mounting bracket 6 and adjusting support 8.Between said mounting bracket 6 and adjusting support 8, also be provided with the pad 4 that is set on the said screw 7.Pad 4 is a pourable resin chock, and nut 5 is a square nut.
The present invention fixes a permanent seat 10 (for example permanent seat 10 can be welded on the outer tube column 3) on the tube column outside, and on this permanent seat 10, chute 101 is set; On the mounting bracket 6 of Steering gear, be provided with and regulate support 8, and be provided with in its junction, regulate that at this mating groove relative with chute 101 also being set on support 8 to open slot away from a side opening of interior tube column 1 with attaching parts.Regulate support 8 and decide to regulate supports 8 and permanent seats 10 through connecting element 9 lockings after moment connects, so that itself and outer tube column 3 formation integral body through attaching parts and mounting bracket 6.
In practice operation, when the bearing circle end received axial force, inside tube column 1 direction of outer tube column 3 pressurizeds moved.Because outer tube column 3 connects into an integral body through attaching parts and connecting element and adjusting support 8 and fixed mounting bracket 6 respectively; So outer tube column 3 has the trend that support 8 inside tube column 1 directions move of regulating that drives; When tube column 3 moves to the accommodation limit position outside; Because mounting bracket 6 is fixed; Regulate the coupling mechanism force that support 8 overcomes attaching parts so outer tube column 3 drives, make connecting element from the open slot of regulating support 8, deviate from outer tube column 3 inside tube column 1 direction crumples.
When needs are regulated the position of bearing circle, only need the outer tube column 3 of adjustment to get final product with respect to the position of interior tube column 1, the present invention can be through unclamping connecting element 9; Make outer tube column 3 break away from the restriction of mounting bracket 6; Can when being adjusted to correct position, pass chute 101 and mating groove along the moving axially of interior tube column 1 through connecting element; Support 8 and permanent seat 10 are regulated in locking, with moving axially through adjusting support 8 and the mounting bracket 6 outer tube columns 3 of restriction.
Steering gear collision crumple protection mechanism provided by the invention is simple in structure, and tooling cost is low, satisfies axial adjustment and collision crumple function simultaneously, and reliable and stable, is easy to suitability for industrialized production.
Chute 101 on the permanent seat 10 is a bar-shaped trough, and the axially parallel of its length direction and said outer tube column 3.Thereby when the axial location of adjustment bearing circle, when moving outer tube column 3, chute 101 is constant to the distance of outer tube column 3, thereby in the crumple moving process, it is also constant that the distance of outer tube column 3 is arrived in the position that chute 101 and the mating groove of regulating on the support 8 intersect.Can make the simple relatively of the Trajectory Design of regulating the mating groove on the support 8; Need not to cater to the track variation of chute 101; Promptly, mating groove equates with the distance of chute 101 to outer tube column 3 as long as arriving the distance of outer tube column 3; In the moving process of tube column 3, arbitrary position of chute 101 all can be intersected with mating groove so outside.Through the length of chute 101 is set, come the axially scope of adjustment of prescribed direction dish.
One end of interior tube column 1 and said outer tube column 3 free-running fits, the other end radially is provided with some convex tendons 11 along it, the endoporus interference fit of the circumscribing circle of some convex tendons 11 and said outer tube column 3.Promptly when inside tube column 1 direction crumple, outer tube column 3 moves to convex tendon 11 positions since with convex tendon 11 interference fit, protect structure so outer tube column 3 forms the crumple of interference damp impacts with interior tube column, the axial force that acts on the outer tube column 3 is laid down.Convex tendon 11 can be 3-5; And the circumferencial direction rectangular distribution of tube column 1 is preferably 4 in said, in being distributed in along 90 ° on the circumference of tube column 1; Tube columns 1 structure that is formed in one in convex tendon 11 is preferred and said; Be easy to processing, in moulding, during tube column 1, can mold convex tendon 11.
The present invention also can comprise the slippage maintainance set 2 that is arranged between said interior tube column 1 and the said outer tube column 3, and this slippage maintainance set 2 and said interior tube column 1 interference fit are with said outer tube column 3 free-running fits.Slippage maintainance set 2 can not be excessive with the gap of outer tube column 3, as long as guarantee the smooth slippage of inner and outer pipe cylinder, excessive clearance is prone to cause abnormal sound.
Simple, the stable performance of structure process and assemble of the present invention, but the outer tube cylinder axis to regulatory function and collision crumple defencive function independent operating, mutually noninterfere can be carried out large batch of suitability for industrialized production.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (6)

1. a Steering gear collision crumple protection mechanism comprises that an interior tube column (1) and an end are set in the outer tube column (3) on the said interior tube column (1), it is characterized in that, also comprises:
Be arranged on the permanent seat (10) on the said outer tube column (3), which is provided with chute (101), said chute (101) is a bar-shaped trough, and the axially parallel of its length direction and said outer tube column (3);
Be fixed on the adjusting support (8) on the mounting bracket (6) of Steering gear through attaching parts; The junction of itself and said attaching parts is provided with to the open slot away from a side opening of tube column in said (1), and this adjusting support (8) is provided with mating groove with the relative position of said chute (101);
Pass said chute (101) and mating groove, to lock the connecting element (9) of said adjusting support (8) and permanent seat (10); An end and said outer tube column (3) free-running fit of tube column (1) in said; The other end along its radially be provided with 3-5, with said in the be formed in one convex tendon (11) of structure of tube column (1); The endoporus interference fit of the circumscribing circle of said convex tendon (11) and said outer tube column (3), and the circumferencial direction rectangular distribution of the said interior tube column (1) in edge.
2. Steering gear collision crumple protection mechanism as claimed in claim 1; It is characterized in that; Also comprise the slippage maintainance set (2) that is arranged between said interior tube column (1) and the said outer tube column (3); This slippage maintainance set (2) and said interior tube column (1) interference fit are with said outer tube column (3) free-running fit.
3. according to claim 1 or claim 2 Steering gear collision crumple protection mechanism is characterized in that said connecting element (9) is a bolt.
4. according to claim 1 or claim 2 Steering gear collision crumple protection mechanism is characterized in that said permanent seat (10) is welded on the said outer tube column (3).
5. according to claim 1 or claim 2 Steering gear collision crumple protection mechanism is characterized in that said attaching parts specifically comprises screw (7) and the nut (5) that is threaded.
6. Steering gear collision crumple protection mechanism as claimed in claim 5 is characterized in that, also comprises being set on the said screw (7), and is arranged on said mounting bracket (6) and regulates the pad (4) between the support (8).
CN2011100621130A 2011-03-15 2011-03-15 Protective mechanism for collision collapse of steering column Active CN102145704B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100621130A CN102145704B (en) 2011-03-15 2011-03-15 Protective mechanism for collision collapse of steering column

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Application Number Priority Date Filing Date Title
CN2011100621130A CN102145704B (en) 2011-03-15 2011-03-15 Protective mechanism for collision collapse of steering column

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CN102145704B true CN102145704B (en) 2012-07-18

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6051688B2 (en) * 2012-08-31 2016-12-27 株式会社ジェイテクト Steering device
GB201303513D0 (en) * 2013-02-27 2013-04-10 Trw Ltd A steering column assembly
US10518798B2 (en) * 2016-10-07 2019-12-31 Yamada Manufacturing Co., Ltd. Steering device
DE102016220532A1 (en) * 2016-10-19 2018-04-19 Thyssenkrupp Ag Steering column with energy absorption device for a motor vehicle
CN107512304A (en) * 2017-08-31 2017-12-26 蒂森克虏伯富奥汽车转向柱(长春)有限公司 A kind of pilot sleeve component

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1268929A (en) * 1997-08-29 2000-10-04 大众汽车有限公司 Automobile steering assembly
CN1301223A (en) * 1998-05-22 2001-06-27 克鲁普·普里斯塔公司 Steering column crash system
CN1504371A (en) * 2002-11-28 2004-06-16 ������������ʽ���� Steering apparatus
CN2709274Y (en) * 2003-05-14 2005-07-13 丰田自动车株式会社 Shock absorbing steering device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1268929A (en) * 1997-08-29 2000-10-04 大众汽车有限公司 Automobile steering assembly
CN1301223A (en) * 1998-05-22 2001-06-27 克鲁普·普里斯塔公司 Steering column crash system
CN1504371A (en) * 2002-11-28 2004-06-16 ������������ʽ���� Steering apparatus
CN2709274Y (en) * 2003-05-14 2005-07-13 丰田自动车株式会社 Shock absorbing steering device

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Denomination of invention: Protective mechanism for collision collapse of steering column

Effective date of registration: 20171219

Granted publication date: 20120718

Pledgee: Rural credit cooperative association in Fucheng District, Mianyang

Pledgor: SICHUAN MIANYANG SANLI Co.,Ltd.

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Denomination of invention: Steering column collapse protection mechanism

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